Calling Serbia China's good friend and partner, Xi said in a congratulatory message that at present, bilateral relations have been flourishing and enjoyed broad development prospects.

Xi said he attaches great importance to China-Serbia ties and is ready to join hands with Vucic to push their countries' comprehensive strategic partnership to a higher level to better benefit the two countries and peoples.

Vucic, Serbia's incumbent prime minister, won Sunday's presidential election with over 55 percent of the votes.